The story so far: PRISM was a storydisk/game released by a business software company, International Software Marketing, in 1982. Inside are clues that lead to real life buried treasure: three golden keys. Back in January of this year, I wrote a series about the game and the commenters of this blog took a swing at solving the puzzles. My original posts used the Apple II version (which still seems to be the original intended platform), but an Atari version surfaced as well (thanks to Atarimania). By comparing the two versions it became clear there was nothing special hidden in the layout of the text-only pages. Via the January 1983 issue of Creative Computing. This is the first mention I’ve seen of a “surprise climax” that will be revealed when “all three keys are cleverly recovered.” I wasn’t expecting to do any updates this week, but: back in February, velvetfistironglove had pointed out a mention of an IBM PC port in PC Mag, and linked to a CP/M version which might be related. (I had…
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